Pegmatite investigations in Maine, New Hampshire, and Connecticut, 1942-1945

Beryl resources of New Hampshire

“…This unit is thickest, possibly 30 feet thick, on the footwall side of the core; only discontinuous lenses of the unit are found on the hanging-wall side. Mapping in 1944 (Cameron and others, 1954) showed a small exposure of beryl-bearing pegmatite on top of the outcrop near the present center of the opencut, suggesting that the core-margin zone completely surrounded the core.…”

“…A list of some of the minerals found at the mine by Frondel (1941, p. 145), Verrow (1941, p. 208-211), and Frondel and Lindberg (1948, p. 135-141 The core-margin zone includes the minerals and features attributed to replacement bodies in and adjacent to the core during earlier studies of the Palermo pegmatite (Cameron and others, 1954). During the 1948-49 investigations, further study of the relation of this unit to the adjacent units indicated that it could be described best as a true zone and that the replacement features could be explained without requiring a separate replacement body of later age.…”

“…The pegmatite deposits of New Hampshire have been investigated by members of the U.S. Geological Survey intermittently since 1914. A comprehensive account of the detailed work completed during 1942-45 is given by Cameron and others (1954), and their report also contains a summary of studies before World War II. Field studies in 1947 led to a report by Olson (1950) on the feldspar in the pegmatites.…”

Twenty-Eighth Rochester Mineralogical Symposium

“…1 pegmatite, Groton, Grafton County, New Hampshire. Paragenesis 1 consists of cavities in quartz veins extending from the pegmatite core into a first intermediate zone (see Cameron et al [1954] for structure of the Palermo No. 1 pegmatite).…”

Mineral and water resources of Nevada

“…Recent studies have increased the general knowledge of the occurrence, origin, and economic importance eron and others, 1949; Jahns, 1955), and studies War I1 have helped improve techniques of (Jahns and others, 1952;Page and others, 1953;Cameron and others, 1954;Norton and Page, 1956). This recent work has shown the imortance of determining the shape, structure, and size of a pegmatite fody .…”